Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

TPA6101A2

50mW ULTRALOW VOLTAGE, FIXEDGAIN STEREO HEADPHONE

AUDIO POWER AMPLIFIER

SLOS331C − AUGUST 2000 − REVISED MARCH 2007

1

POST OFFICE BOX 655303

− 3-mm

y 5-mm MSOP Package (DGN)

− 5-mm

y 6-mm SOIC Package (D)

− 2,5-mm

y 2,5-mm MicroStar JuniorE BGA

Package (ZQY)

description

The TPA6101A2 is a stereo audio power amplifier packaged in an 8-pin SOIC package, an 8-pin MSOP

package, or a 15-ball BGA package, capable of delivering 50 mW of continuous RMS power per channel into

16-

Ω loads. Amplifier gain is internally set to 2 dB (inverting) to save board space by eliminating six external

resistors.

The TPA6101A2 is optimized for battery applications because of its low supply current, shutdown current, and

When driving a 16-

Ω load with 40-mW output power from 3.3 V, THD+N is 0.08% at 1 kHz, and less than 0.2%

across the audio band of 20 Hz to 20 kHz. For 30 mW into 32-

Ω loads, the THD+N is reduced to less than 0.06%

at 1 kHz, and is less than 0.3% across the audio band of 20 Hz to 20 kHz.

typical application circuit

Audio

Input

Bias

Control

VO1

VO2

VDD

IN 1−

BYPASS

SHUTDOWN

VDD/4

CI

80 k

Ω

RF

80 k

Ω

CB

CS

Audio

Input

CI

IN 2−

VDD

From Shutdown

Control Circuit

−

+

−

+

CC

CC

80 k

Ω

RI

80 k

Ω

RF

80 k

Ω

NOTE: All internal resistor

values are

±20%.

80 k

Ω

RI

MicroStar BGA is a trademark of Texas Instruments.

Copyright

 2007, Texas Instruments Incorporated

1

2

3

4

8

7

6

5

BYPASS

GND

SHUTDOWN

IN2−

IN1−

D or DGK PACKAGE

(TOP VIEW)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

IN2−

IN1−

GND

BYPASS

GND

(A1)

SHUTDOWN

ZQY PACKAGE

(TOP VIEW)

(B1)

(C1)

(D1)

(A4)

(B4)

(C4)

(D4)